US450369A - Half to will f - Google Patents

Description

2 Sheets-Sheet 1.

(NoModeL) J. G. KELLBERG. OHROMATIG PRINTING PRESS.

Patented Apr. 14,1891.

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(No Model.) 2 Sheets-Sheet 2.

J. G. KELLBERG. CHROMATIC PRINTING PRESS.

NO. 450,369. I PatentedApr. 14,1891.

I H R UNITED STATES ATENT Erica,

HALF TO ILL F. JORDAN AND JOHN J.

PLACE.

MCLAURIN, BOTH OF SAME CHROMATlC-PRlNTlNG PRESS.

sI'EGIFlCATION forming part of Letters Patent No. 450,369, dated April 14, 1891.

Application filed September 12, 1890. .Serial No. 364,746- (No model.)

To all whom, it may concern:

Be it known that I, JOHN G. KELLBERG, of Harrisburg, in the county of Dauphin and State of Pennsylvania, have invented certain new and useful Improvements in Chromatic- Printing Presses; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part to of this specification, and to the letters of reference marked thereon.

My present invention has for its object to improve the construction and operation of the class of presses employed for printing [5 different colors at one time by providing means for facilitating the adjustment of the various printing-forms relative to the impression cylinder or platen and to each other; and it consists in certain novelties of construction and combinations of parts, all as will be hereinafter fully described, and the novel features pointed out particularly in the claims at the end of this specification.

In the drawings, Figure 1 is a side view of a press constructed in accordance with my invention, the frame being removed; Fig. 2, an elevation of one of the printing-forms and its supporting-shaft; Fig. 3, an end view of the same; Fig. 4:, an elevation showing a num- 0 ber of form-cylinders arranged on a single shaft, the inking devices being removed; Fig. 5, a detail View showing the means of adj ustment of a single cylinder when the arrangement shown in Fig. 4 is employed.

5 Similar letters of reference in the several figures indicate the same parts.

In the class of presses to which my invention relates, wherein a number of printing cylinders or forms are employed to make a series of impressions, preferably in different effects upon the paper at the same time or while it is passing through the machine, it is oftentimes difficult to secure an exact adjustment of the printing-forms, so as to cause them to print their colors in the appropriate place; but by means of the hereinafter-described device the adjustment may be accomplished readily and the'parts caused to perform their required operations exactly.

In the present embodiment of the invention I have shown it applied to'a press having its impression-surface in the form of a cylinder A, upon which the paper or other surface to be printed is supported, while the printing surfacesor cylinders B are arranged around its periphery, each cylinder adapted,

long as the cylinders are so arranged as to apply the appropriate colors or impressions 6 5 in appropriate places.

The shafts O, carrying the cylinders, are supported insuitable bearings and are rotated by suitable gears D, mounted on their ends and fastened to the shaft by readily-de- 7o tachable fastenings, such as the bolts d, as shown. As the gears are in mesh with the gearing X, driving the main impression-cylinder A, the shafts O are so timed that the impressions of the cylinders B will be made in appropriate places; but with each pattern or form printed it is necessary that they be changed, and for the purpose, of permitting this to be readily accomplished I provide an index-fingerf on the end of the shaft and 10- 8o cate an index 9 on the end of the gear, so that by loosening the gear and rotating the shaft and cylinder relative to it the proper adjustment can readily be had, the index indicating the distance the impression is advanced or retracted from the position it occupied on the trial-sheet which was run through the press previously. For the purpose also of determining and regulating the longitudinal adjustment of the cylinders B, I prefer to 0 mount them loosely on the shaft and to connect them to it by means of a set-screw F, screwing into the cylinder and having collars h thereon arranged on opposite sides of a collar G, which latter is mounted 011 shaft 0, 5 and secured in position by suitable means, such a bolt or screw H passing through itand engaging the shaft. By rotating the screw F the cylinder will be adjusted along the shaft, and its position can be changed to cause the IOO impression to register properly with those made previouslyor subsequentlyon the paper on the impression-cylinder.

It will be understood that, if desired, the cylinder B could be splined to shaft G, instead of being connected only through the screw and collar; and I prefer this arrange ment in some instances, as it relieves the latter of strain during the printing operation.

In Figs. 4 and 5 an arrangement is shown wherein a series of. cylinders B are mounted on each of the shafts 0, either for the purpose of making a series of impressions of the same pattern or color or of different parts of the same pattern, and in this construction and for the purpose of permitting the independent adjustment of cylinders I provide each of the cylinders with an adjusting-screw F and collar G, and on the end of each provide an index-dial n, with which co-operates an indexfingerj, formed on collar k, and secured upon the shaft in proximity thereto by a screw on. The end of the shaft may be provided, as before, with an index-finger f, co-operating with an index g on the gear, which will serve to indicate the position of the whole series of cylinders; or the first cylinder of the series may be secured on the shaft by a spline and only capable of an independent longitudinal adjustment, so that the index f and g will serve as its rotary index. i

From the above it will be understood that independent rotary adjustment of the cylin- The numberof cylinders and theirarrangevm'ent relative to the impression-cylinder are immaterial, the object being to provide means for adjusting the type or printing cylinders relative to the latter and to each other.

Having thus described my invention, what I claim as new is-- 1. In a printing press, the combination, with an impression cylinder or surface, of a shaft, a printing-cylinder adjustably mounted on said shaft to move longitudinally thereof, a gear on the shaft, a detachable connection between said shaft and gear, and an indicator for indicating the adjustment of the shaft and gear relative to each other, substantially as described.

2. In a printing-press, the combination, with an impression cylinder or surface, of a shaft, a printing-cylinder thereon connected thereto by a screw for causing its adjustment longitudinally of the shaft, a gear on the shaft, a detachable connection between said shaft and gear, and indicator for indicating the ad 3' ustment of the gear and shaft relative to each other, substantially as described.

3. In a printing-machine, the combination, with an impression cylinder or surface, of a shaft, a printing-cylinder thereon, a movable collar" on the shaft, an adj usting-screw engaging said collar, and the cylinder for causing their relative longitudinal adjustment, substantially as described.

4. In a printing-press, the combination, with an impression cylinder or surface, of a shaft, a series of printing cylinders or forms independently adjustable thereon, both circumferentially and longitudinally, and a series of indicators for ascertaining the amount of adjustment of each relative to the shaft, substantially as described.

5. In a printingpress, the combination, with the impression cylinder or surface, of a shaft, a series of printing cylinders or forms thereon, a series of movable collars detachably secured to the shaft, one for each cylinder, adjusting-screw between each collar and its cylinder, and a series of indicators secured on the shaft co-operating with scales on the cylinders for indicating the amount of their rotary adjustment independent of the shaft, substantially as described.

JOHN C. KELLHERG.

Witnesses:

IVILL F. JORDAN, J. J. MCLAURIN.

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